JPS6015293B2 - Tubular packaging material folded into a warm shape in a case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flexible cylindrical packaging folded into the shape of a hollow cylindrical "worm" by longitudinal pleating, placed in a flexible cylindrical case.

Meat preparations in the form of sausage ingredients are sold in bulk in synthetic tubular packaging.

Is man-made sausage packaging made of synthetic materials?
Alternatively, cellophane is particularly commonly used, and it is particularly advantageous if the packaging material consists of a cellophane tube filled with fibers. For example, when making sausage, approximately 2
A tube of the above type with a length of 0 skin is used.

These tubes, as is well known, are formed into hollow cylindrical rods open at both ends by longitudinally pleating and folding using commonly used equipment, and in doing so, the longitudinal axis compressed in the direction Such a hollow rod has a length of approximately 40 skins with the above-mentioned initial tube length. In the following, the hollow twill will be referred to as a "worm" as usual. In order to stuff the worm with sausage ingredients, one end of the worm is first closed and the other opening is then pushed onto the filling mouth of the stuffing machine.

Sausage raw material is pressed into the worm with press pressure,
The worm then gradually expands and the cylinder is then filled with sausage material. The worm has a certain degree of robustness due to its construction, but is susceptible to bending loads and is prone to breaking into two or more parts, which parts are interconnected by an elongated cylindrical section.

It is necessary to moisten the worm with water before filling, since during the filling process the cylinder forming the worm is subject to strong mechanical loads.

Due to the fact that the cylinder absorbs water, there is a risk of deformation of the worm during subsequent handling of the wet worm due to swelling of the material forming the worm. The risk that the worm will lose its original shape during handling due to both of the above-mentioned effects may be reduced if the cylindrical packaging material forming the worm is relatively thick, e.g. It is particularly large when it has a large inner diameter, for example a four-pronged diameter.

It has therefore already been proposed to protect the worms by wrapping them in netting. In this case, the worm is inserted into a silk tube made of synthetic material and of sufficiently long dimensions. One of the two portions of the mesh tube that overhangs the ends of the worm is then folded back into the worm cavity, passed through the worm cavity, and connected to the other portion of the mesh outside the other worm closure. This protection is relatively expensive along with some other known protections.

This protection also means that when filling the worm with sausage ingredients, the worm opening into which the sausage ingredients or filling opening of the filling machine is inserted is closed, so the entire silk case is removed from the worm before filling the worm with the sausage ingredients. It has the disadvantage that it must be completely removed. Furthermore, the folds of the folded packaging material may get caught in the net, damaging the cylindrical packaging material forming the worm and making it difficult to pull out the packaging material during the filling process. . If a worm wrapped in a silk case in the well-known manner is immersed in water immediately before use, significant internal pressure will be applied to the packaging material forming the worm, which may cause the worm to warp vertically, causing it to be forced into the filling machine. Disadvantageous jamming occurs when pressing onto the filling tube.

Furthermore, there is a risk of silk fibers getting into the sausage material.

The object of the invention is to provide a worm in the form of a hollow rod consisting of a longitudinally pleated cylindrical food packaging material, which is tightly surrounded on the outside by a cylindrical casing. Based on the unique fixing mechanism of the worm, it is possible to press the worm in the case onto the filling tube of the intestine stuffing machine, guarantee the robustness of the worm during handling, prevent the worm from becoming dirty and dry, and prevent water bathing. The object of the present invention is to be constructed so as to enable complete immersion of the cylindrical packaging material forming the worm during impregnation treatment in the water chamber. This problem is addressed in the first claim
According to the invention described in Section 1 (first invention), in a flexible cylindrical packaging material folded into a hollow cylindrical worm shape by pleating in the longitudinal direction, the worm is placed in a flexible cylindrical case. The outer surface is surrounded by a flexible cylindrical case, and the cylindrical case has bulges projecting beyond both ends of the worm, and portions of these bulges near the main body of the worm cover the inner surface. are placed on the end faces of the worm, and are pressed onto the projecting parts on the surface of the case projecting part near the case main part on the side opposite to the worm end face. and the overhanging portion is folded outward and rearward to surround the annular plate, and tightly contacts and covers the inner circumferential surface, surface, and outer circumferential surface of the annular plate, respectively. This problem is solved by arranging the folded portion that is folded back toward the rear of the projecting portion parallel to the main portion of the case and in close contact with the outer surface of the main portion of the case.

The same problem is further solved according to the invention recited in claim 7 (second invention), in which a worm is folded into a hollow cylindrical worm shape by being folded in the longitudinal direction and folded into a flexible cylindrical case. In a flexible cylindrical packaging material, an annular plate is placed on the end surface of the worm, and the outer surface of the worm is surrounded by a cylindrical case, and the protruding portions of the cylindrical case extend inwardly and backwardly, respectively. The inner circumferential surface of the annular plate and the clamp are folded back around the annular plate and arranged in the opening of the annular plate. The problem is solved by being firmly clamped and arranged between the parts.

The case merely covers the outer surface of the worm, and the overhangs at both ends project beyond the ends of the worm.

The case has both openings of the worm hollow chamber open. The case consists of a tube, which can have several or many needle-like perforations or holes. The overhang part near the main part of the case is a part of the overhang part that is directly adjacent to the main part of the case and is integral with the main part of the case, and its length is approximately 1 to 2 times the width of the end face of the worm. be equivalent to.

The case is connected to the worm so that it does not come off by itself when using the worm in the case. The word "coupled" here means that the worm and the housing can be separated without damaging the housing or the worm. However, in order to use a worm in a case, it is not necessary to remove the case from the worm.

"Use of cased worms" refers to their stock storage, transportation, soaking and filling of water-bonded cased worms with sausage ingredients or other pasty substances in conventional filling machines. In this case, almost the entire length of the folded cylinder forming the worm is extended by the press pressure of the sausage material that comes out of the filling pipe and enters the hollow chamber of the worm, which is closed at one end, and the case is filled with the sausage material. The filling operation ends when it comes out. After filling the tube forming the worm with sausage material, the case is abandoned. The housing consists of a flexible foil tube having a constant cross-section over its entire length, in particular a section made of synthetic resin, preferably a tube made of stretched polyethylene terephthalate foil, particularly preferably a tube made of cellophane. Also particularly advantageous are tubes made of cellophane filled with fibers, in particular paper fiber tubes produced by impregnating a paper fiber tube with viscose and coagulating it, as is known per se.

It is particularly advantageous if the tube forming the housing is transparent.

An advantageous case based on a cellophane tube filled with paper fibers is water permeable, but water resistant. Water resistance here means having a tear strength of at least lk 9/rib 2 at a water content of 130 to 16% by weight, based on the total weight of the tube.

"Flexible cylindrical case" refers not only to those made of the above-mentioned materials, but also to thin, flexible hollow cylinders made of metal such as aluminum, with a slight wall thickness that can be folded back at both ends by flaring. Also refers to

The cylindrical piece forming the main part of the case and the overhang has an inner diameter slightly larger than the outer diameter of the worm to be placed in the case, so that the worm can easily be pushed into the hollow chamber of the cylindrical piece. , and on the other side the tube piece surrounds the worm sufficiently closely.

The length of the case including the case overhang is determined to be equal to the sum of the length of the worm to be placed in the case and twice the diameter of the worm. The two housing projections each have a length equal to the diameter of the worm. The case protrusion is almost the same as the worm length, and the advantage is 3~
Advantageously, it has a length of 5 skins. The wall thickness of the case as well as of the bulge is advantageously equal to the wall thickness of the cylinder forming the worm and has a thickness in the range from 60 to 120 mm.

In a preferred embodiment of the invention, the worm and its housing consist of a cellophane tube, preferably a cellophane tube filled with reinforcing fibers.

In the present invention, annular plates are provided at both ends of the case in order to fix the case in a position surrounding the worm.

The toroidal plate has a centrally located circular opening. The toroidal plate has two parallel flat surfaces and one inner circumferential surface and one outer circumferential surface. The outer diameter of the annular plate is approximately equal to the outer diameter of the worm, and the inner diameter is approximately equal to the inner diameter of the worm, that is, the diameter of the worm cavity. The thickness of the toroidal plate is not critical. Toric plate is 0
．． It is advantageous to have a thickness of 1 to 0.3 skin. The toroidal plate can be made of any material having sufficient robustness; it is advantageously made of synthetic resin, in particular low-pressure polyethylene.

The worm, case and toroidal plate together form a unit and cooperate to provide the desired effects of the invention.

The toroidal plate is not removed from the case, and the case is not removed from the worm during worm stocking, transportation, water accounting, and sausage material filling. The hollow chamber of the cased worm is open at both ends. When the worm is in use, the filling tube of the intestine filler can be inserted into this hollow chamber in a known manner. The worm is then gradually stretched out in a known manner, as previously explained, by pressing in the sausage material;
As a result, the entire length of the cylinder forming the worm is filled with the sausage raw material, and there is no longer any cylindrical packaging material inside the case. Therefore, it is not necessary to remove the case in order to fill the worm with sausage ingredients as is customary. A case that completely surrounds the outer surface of the worm has the following effects.

1. The worm is guaranteed to be robust and free from mechanical damage during use.

There is little risk of damage to the dry worm, and the worm is robust when wet. 2. Contamination of the worm after fabrication and excessively rapid drying of the field are prevented.

3. Mechanical damage to the folds of the worm is also prevented in the case of a case made of water-permeable material, and mechanical auxiliary parts, such as a dipping rod, which must be removed from the worm when the worm is in use, are prevented. Rapid and uniform wetting during water thinning operations without the use of water and immediate use of the cased hydrated worm during the filling process are possible.

The cylindrical packaging material in a case, which is pleated and folded into a worm shape, according to the invention set forth in claim 1 is manufactured, for example, as follows. A worm made of a cellophane tube which is folded and folded in the longitudinal direction is pushed into a cellophane tube of an appropriate size having an inner diameter slightly larger than the outer diameter of the worm.

At this time, the length of this cylinder piece is 1, which the cylinder piece surrounds the worm.
A worm case is formed, and the casing is closed at each end so as to have a projecting portion projecting beyond the worm end by a length corresponding to a portion of the outer diameter of the worm. Next, fit an annular plate onto the case overhang of each cylinder surrounding the worm, also toward the end face of the worm, and attach the annular plate to the part of the overhang that is directly adjacent to the main part of the case. It is crimped to the end face of the worm by the pressure action of the surface.

Next, while avoiding any change in the arrangement of the toroidal plate relative to the worm, the case extension is turned outward and rearward and folded back by applying a tensile force to the end of the extension.
This folded portion of the case bulge is then placed parallel to the case body and closely adjacent to the outer surface of the case body. In this case, the case extension is in close contact with the inner circumferential surface, the surface and the outer circumference of the annular plate, so that the annular plate is surrounded by the protrusion on all sides. Particularly if the main part of the case as well as its extension are made of cellophane, at least the case extension can be moistened with water before or after the folding operation.

By this measure, the folded portion of the housing bulge rests very easily and tightly against the housing body, thereby creating a particularly advantageous and robust housing for the worm. The cylindrical packaging material in a case, which is pleated and folded into a worm shape, according to the invention set forth in claim 7, is produced, for example, as follows.

That is, the worm is pushed into a case consisting of longer cylindrical pieces, so that each case projects beyond both ends of the worm, and then one annular plate is placed on each end face of the worm, The case projections are each folded back inwardly over the surface of the toroidal plate into the worm cavity, and then one respective clamping part in the form of a tube piece is pressed into the opening □ of the toroidal plate. The inwardly folded case overhang is firmly clamped between the inner peripheral surface of the annular plate and the outer peripheral surface of the clamp member. In the invention described in claim 7 above, an annular plate and a clamp member are provided.

The clamping section can be constructed in the form of a short tube that is open at both ends and has a central hole of circular cross section. The tube piece has, at one end, an annular flange projecting outwardly perpendicular to the longitudinal axis of the tube piece. The tube piece has a small length, for example one fox length. The outer diameter of the tube piece is only slightly larger at the end opposite the flange than in the remaining area excluding the flange. The width of the flange of the tube piece is then equal to the width of the ring plate, the width being the distance between the outer diameter and the inner diameter.

The annular plate and the clamp member, which serve as molded members that maintain the position of the case relative to the worm, are made of a strong and water-insoluble material.

Advantageously, the toroidal plate and the clamping member are made of synthetic resin, such as low-pressure polyethylene, polyamide, polyvinyl chloride, or the like. However, it is also possible for both shaped parts to be made of metal. In Fig. 1, 1 is a worm in a case, 2 is a case made of a cylinder piece, 4 is a hollow cylindrical worm with both ends open and made of a cylinder pleated and folded in the longitudinal direction, 5 is a fold of the worm, 5a is the folded twill part of the worm, 6 is the worm hollow chamber, 7 is the worm end surface, 8
is the outer surface of the worm, 8a is the inner surface of the worm, and 9 is a case projecting portion.

In FIG. 2, the numbers 1 and 2 and 4, 5, 6a, 6,
7, 8, 8a and 9 refer to the same as in FIG.

1 is an annular plate, 14a and 14b are surfaces of the annular plate, 15 is an inner circumferential surface of the annular plate, and 16 is an outer circumferential surface thereof.

In Figures 3 and 3a, reference numeral 21 denotes a portion of the case overhang 9 that is located between the worm end face 7 and the surface 14b of the annular plate 10 and directly adjacent to the case.

In FIG. 3a, the end region 9a of the housing extension 9 is shown partially turned back outwards and backwards.

In FIG. 4, 32 is a portion of the overhang that contacts the inner peripheral surface 15 of the annular plate 10, 33 is a portion of the overhang that runs along the surface 14a of the annular plate, and 34 is a folded portion of the overhang 9. In this case, the region 34a of the folded portion is arranged on the outer circumferential surface 16 of the annular plate 10, and the region 34b is arranged exactly on the outer surface of the case and parallel to this.

35 is a tightening ring whose spring force acting in the radial direction presses the projecting portion against the case wall.

Other symbols written in FIG. 4 refer to the same things as in FIG. The symbols written in FIG. 5 are the same as in FIGS. 1 to 4.

In FIG. 6, reference numeral 11 is a clamp member, 20 is a flange of the clamp member 11, 28 is an outer surface of the flange 20, 29 is a back surface thereof, and 9a is a folded portion of the case extension 9 (FIG. 1).

Other symbols in FIG. 6 are the same as in FIGS. 1 to 5. The same applies to the symbols written in FIGS. 7 and 8.
In FIG. 9, reference numeral 11 denotes the clamp portion, 17 the outer surface of the tube piece, 18 the inner surface of the clamp portion 11, 19 the tightening step,
20 is a flange, 28 is an outer surface of the flange, 29 is a back surface, 3
0 is the outer periphery of the payment step. In FIG. 10, reference numeral 11a is a clamp member, 17 is an outer surface of the tube piece, 17a is a conical portion thereof, 18 is an inner surface, 19 is a tightening step, 40 is a slit, 4
1 is a spring acting portion, and 31 is an arrow.

In Fig. 11, 2 is a case, 4 is a worm, 5 is a fold of the worm, 7 is an end surface of the worm, 8 is an outer surface of the worm, 9
9a is the case protrusion, 9a is the folded part of the case protrusion, 10
1 is an annular plate, 22 is a filling machine for sausage raw material, that is, filling machine (not shown), 23 is a worm in a case,
24 is a hollow chamber inside case 2, 25 is a sausage raw material, 2
6 is a closed end odor of the cylinder forming the worm, and 5a is a line corresponding to the shape of the worm folds 5 on the cylindrical portion formed by stretching the worm.

[Brief explanation of drawings]

Figures 1 to 4 show the manufacturing stages of an embodiment of the cased worm of the first invention, and Figure 1 is a longitudinal cross-section showing the worm placed inside a cylindrical case having an overhang. 2 is a vertical cross-sectional view showing the annular plate fitted onto the case overhang, and FIG. 3 is a vertical cross-sectional view showing the annular plate fitted onto the case overhang, and FIG. A vertical cross-sectional view showing the parts near the main part in a state where they are squeezed between the worm end face and the annular plate surface, Figure 3a is a vertical cross-sectional view showing the folding of the overhang, and Figure 4 is the case overhang. A vertical cross-sectional view of a worm in a case shown in a state where the worm is folded outward and rearward so that the folded part is in contact with the outer surface of the case and extends parallel to the case, FIGS.
Fig. 7 shows the manufacturing stage of an embodiment of the cased worm of the second invention, and Fig. 5 shows the state in which the annular plate is arranged directly adjacent to the end face of the worm inside the cylindrical case. FIG. 6 is a longitudinal sectional view showing the case projecting portion folded back toward the inside of the worm through the annular plate surface, and this folded portion is fixed by a clamp member, and FIG. 8 and 9 are enlarged vertical sectional views of the annular plate and the clamp member, FIG. 10 is a perspective view of another embodiment of the clamp member, and FIG. 11 is a sausage. It is a longitudinal cross-sectional view showing the state used for filling raw materials. The correspondence relationship between the main parts shown and the symbols is as follows. 1... Worm in case, 2... Case, 4
... Worm, 6... Worm hollow chamber, 7... Worm end surface, 8... Worm outer surface, 9... Case overhang, 10... Annular plate, 11... Clamp member, 14a and 14b ...Surface of the annular plate, 15...Inner peripheral surface of the annular plate,
16...Annular plate outer peripheral surface, 34...Folded portion. Fi9.1 Fig. 6 Fig. 2 Fig. 3Fig. 3oFneemFig. 5 Fi9.7 Fi9.8 Fig. 9Fig. 10Fig. 11

Claims (1)

[Scope of Claims] 1. A flexible cylindrical packaging material that is placed in a flexible cylindrical case and folded into a hollow cylindrical worm shape by pleating in the longitudinal direction, wherein the outer surface of the worm is flexible. The worm is surrounded by a cylindrical case, and this cylindrical case has case overhangs that protrude beyond both ends of the worm, and the portions of these overhangs near the main body of the worm cover the inner surface. An annular plate is placed on the end face of the worm and is pressed onto the surface of the case protrusion near the main part of the case on the side opposite to the worm end face. The projecting portion is folded outward and rearward to surround the annular plate, and is in close contact with the inner circumferential surface, surface, and outer circumferential surface of the annular plate, and is stretched. A worm-shaped cylindrical case enclosed in a case, characterized in that the folded part folded back toward the rear of the exit part is arranged parallel to the main part of the case and in close contact with the outer surface of the main part of the case. packaging material. 2. A cylindrical packaging material folded into a worm shape in a case according to claim 1, wherein the worm and the case are tubes made of cellophane or cellophane containing reinforcing fibers. 3. The cylindrical packaging material folded into a worm shape in a case according to claim 2, wherein the case has perforations or holes. 4. The cylindrical packaging material folded into a worm shape in a case according to claim 3, wherein the folded portion of the projecting portion has a length equal to the outer diameter of the worm. 5. The cylindrical packaging material folded into a worm shape in a case according to claim 4, wherein the length of the projecting portion is approximately equal to 1/(10) of the worm length. 6. The cylindrical packaging material folded into a worm shape in a case according to claim 5, wherein the annular plate is made of low-pressure polyethylene. 7. A flexible cylindrical packaging material placed in a flexible cylindrical case and folded into a hollow cylindrical worm shape by pleating in the longitudinal direction, with a ring on the end surface of the worm, and The outer surface of the worm is surrounded by a cylindrical case, and the protruding portions of the cylindrical case are folded inwardly and rearward to surround the annular plate, and the projecting portions of the cylindrical case are folded inwards and backwards to surround the annular plate. A worm-shaped case encased, characterized in that the clamp member is firmly clamped between the inner circumferential surface of the annular plate and the clamp member by a clamp member in the form of a short tube piece with a flange disposed at the A cylindrical packaging material folded into a 8. A cylindrical packaging material folded into a worm shape in a case according to claim 7, wherein the case and the worm are made of a cellophane cylinder containing reinforcing fibers. 9. A cylindrical packaging material folded into a worm shape in a case according to claim 8, wherein the length of the case is equal to the sum of the length of the worm and the length of the folded portions at both ends. 10. The cylindrical packaging material folded into a worm shape in a case according to claim 9, wherein the length of each folded portion of the case is equal to at least 1/2 of the outer diameter of the worm. 11. The worm-shaped cylindrical packaging material in a case according to claim 10, wherein the outer diameter of the tube piece near the end opposite to the flange is larger than that in other areas excluding the flange. . 12. Claim No. 1, wherein the folded portion of the case is firmly clamped between the surface of the annular plate and the back surface of the flange of the clamp member, and between the outer surface of the clamp member and the inner peripheral surface of the annular plate. A cylindrical packaging material folded into a warm shape and packed in a case as described in Item 11.